From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0DA23C46CD2 for ; Wed, 27 Dec 2023 06:31:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EPJ98Wq79Al/JALNWABjuVNLkg5bKyaeh2mw0Y8YsAw=; b=QCfdvM4zKcOohOhNfx8WpQeUM6 5zg5gixZr1FWfWSiptOHpiS+vptA2k1AwLtVMKmOsqKNUSkZ9KiSpUIfeI6eUjGI0lhbv8+QuRMQm MK9J4e//QZX+4ZNm1hVBvyicLHOa+9RHkLv20lPct1ak07Avbr6zku+rgsOWXhoGX0nUagfi7pxTm 8cb6Oc1D4EvwBuQ7DXp82L/hzER+P6xCNSTT4naX2frXjqwoAhepYUSW5weZhRznoo8LYmLYepFv7 xTmUgNohQ1S5IC2yZbyvN5nH4pcqFpiGudoU2nD0UYX3yPFSp4Bc64In+miUy3e4+/qs7c7l+A1Gu UNCY2CMA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rINRY-00E4fF-06; Wed, 27 Dec 2023 06:31:04 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rINRT-00E4dH-2f; Wed, 27 Dec 2023 06:31:01 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 5D4F6CE091D; Wed, 27 Dec 2023 06:30:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A7B6C433C7; Wed, 27 Dec 2023 06:30:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1703658651; bh=axysAKGKpEKkYuBldpcX4OwH/06/63fo7fdgfaaiYJ0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lQrvPlfW/CtT5sS+oEY90/+eqaqBHhGEYLemgV/ZKcGWOjusFD97MO+09SIWOnKOo tgdwO0+xBuD+X0dYrbW6kvvEQEhlc0DVt6JjrD0/kvARe7Y8Mrrf/+u9BVG0a+La/x cH+jGCFdHEUUmGkBLXqJnnIgQ6s6UUPUwFt1OlXQ5xDRRVBaMikZYb8g4qIgT961Yq aRWvXiarXxNcIb6V5ltQlMEMLt/vUTDfwTsqCLphFrWBouu+dJQSdsph1/N30ZLJ+6 ZzOwWPTdVVI2sUyluEm8Gmpqsql8oEVBD2lu3ZTDIrLQaL5CdVxaBoGB7QZDb/fJoI RSoEakRp8wKjA== Date: Wed, 27 Dec 2023 12:00:38 +0530 From: Manivannan Sadhasivam To: Chanwoo Lee Cc: alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, jejb@linux.ibm.com, martin.petersen@oracle.com, peter.wang@mediatek.com, chu.stanley@gmail.com, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, stanley.chu@mediatek.com, quic_cang@quicinc.com, quic_asutoshd@quicinc.com, powen.kao@mediatek.com, quic_nguyenb@quicinc.com, yang.lee@linux.alibaba.com, beanhuo@micron.com, Arthur.Simchaev@wdc.com, ebiggers@google.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, grant.jung@samsung.com, jt77.jang@samsung.com, dh0421.hwang@samsung.com, sh043.lee@samsung.com Subject: Re: [PATCH v2] ufs: mcq: Adding a function for MCQ enable Message-ID: <20231227063038.GJ2814@thinkpad> References: <20231221065608.9899-1-cw9316.lee@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20231221065608.9899-1-cw9316.lee@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231226_223100_229021_1C99F2D4 X-CRM114-Status: GOOD ( 21.52 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Thu, Dec 21, 2023 at 03:56:08PM +0900, Chanwoo Lee wrote: > From: ChanWoo Lee > > The REG_UFS_MEM_CFG register is too general(broad) > and it is difficult to know the meaning only with a value of 0x1. > So far, comments were required. > > Therefore, I have added new functions and defines > to improve code readability/reusability. > > Signed-off-by: ChanWoo Lee I would reword the subject and description as below: ``` ufs: mcq: Add definition for REG_UFS_MEM_CFG register Instead of hardcoding the register field, add the proper definition. While at it, let's also use ufshcd_rmwl() to simplify updating this register. ``` - Mani > > * v1->v2: > 1) Excluding ESI_ENABLE > 2) Replace with ufshcd_rmwl, BIT() > 3) Separating hba->mcq_enabled > --- > drivers/ufs/core/ufs-mcq.c | 6 ++++++ > drivers/ufs/core/ufshcd.c | 4 +--- > drivers/ufs/host/ufs-mediatek.c | 4 +--- > include/ufs/ufshcd.h | 1 + > include/ufs/ufshci.h | 3 +++ > 5 files changed, 12 insertions(+), 6 deletions(-) > > diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c > index 0787456c2b89..edc752e55878 100644 > --- a/drivers/ufs/core/ufs-mcq.c > +++ b/drivers/ufs/core/ufs-mcq.c > @@ -399,6 +399,12 @@ void ufshcd_mcq_enable_esi(struct ufs_hba *hba) > } > EXPORT_SYMBOL_GPL(ufshcd_mcq_enable_esi); > > +void ufshcd_mcq_enable(struct ufs_hba *hba) > +{ > + ufshcd_rmwl(hba, MCQ_MODE_SELECT, MCQ_MODE_SELECT, REG_UFS_MEM_CFG); > +} > +EXPORT_SYMBOL_GPL(ufshcd_mcq_enable); > + > void ufshcd_mcq_config_esi(struct ufs_hba *hba, struct msi_msg *msg) > { > ufshcd_writel(hba, msg->address_lo, REG_UFS_ESILBA); > diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c > index ae9936fc6ffb..30df6f6a72c6 100644 > --- a/drivers/ufs/core/ufshcd.c > +++ b/drivers/ufs/core/ufshcd.c > @@ -8723,9 +8723,7 @@ static void ufshcd_config_mcq(struct ufs_hba *hba) > hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; > hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; > > - /* Select MCQ mode */ > - ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, > - REG_UFS_MEM_CFG); > + ufshcd_mcq_enable(hba); > hba->mcq_enabled = true; > > dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, queue_depth=%d\n", > diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c > index fc61790d289b..1048add66419 100644 > --- a/drivers/ufs/host/ufs-mediatek.c > +++ b/drivers/ufs/host/ufs-mediatek.c > @@ -1219,9 +1219,7 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba) > ufs_mtk_config_mcq(hba, false); > ufshcd_mcq_make_queues_operational(hba); > ufshcd_mcq_config_mac(hba, hba->nutrs); > - /* Enable MCQ mode */ > - ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, > - REG_UFS_MEM_CFG); > + ufshcd_mcq_enable(hba); > } > > if (err) > diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h > index d862c8ddce03..a96c45fa4b4b 100644 > --- a/include/ufs/ufshcd.h > +++ b/include/ufs/ufshcd.h > @@ -1257,6 +1257,7 @@ unsigned long ufshcd_mcq_poll_cqe_lock(struct ufs_hba *hba, > struct ufs_hw_queue *hwq); > void ufshcd_mcq_make_queues_operational(struct ufs_hba *hba); > void ufshcd_mcq_enable_esi(struct ufs_hba *hba); > +void ufshcd_mcq_enable(struct ufs_hba *hba); > void ufshcd_mcq_config_esi(struct ufs_hba *hba, struct msi_msg *msg); > > int ufshcd_opp_config_clks(struct device *dev, struct opp_table *opp_table, > diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h > index d5accacae6bc..2a6989a70671 100644 > --- a/include/ufs/ufshci.h > +++ b/include/ufs/ufshci.h > @@ -282,6 +282,9 @@ enum { > /* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */ > #define UTP_TASK_REQ_LIST_RUN_STOP_BIT 0x1 > > +/* REG_UFS_MEM_CFG - Global Config Registers 300h */ > +#define MCQ_MODE_SELECT BIT(0) > + > /* CQISy - CQ y Interrupt Status Register */ > #define UFSHCD_MCQ_CQIS_TAIL_ENT_PUSH_STS 0x1 > > -- > 2.29.0 > -- மணிவண்ணன் சதாசிவம் From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8F7A2C46CD4 for ; Wed, 27 Dec 2023 06:31:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: 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(Exim 4.96 #2 (Red Hat Linux)) id 1rINRT-00E4dH-2f; Wed, 27 Dec 2023 06:31:01 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 5D4F6CE091D; Wed, 27 Dec 2023 06:30:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A7B6C433C7; Wed, 27 Dec 2023 06:30:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1703658651; bh=axysAKGKpEKkYuBldpcX4OwH/06/63fo7fdgfaaiYJ0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lQrvPlfW/CtT5sS+oEY90/+eqaqBHhGEYLemgV/ZKcGWOjusFD97MO+09SIWOnKOo tgdwO0+xBuD+X0dYrbW6kvvEQEhlc0DVt6JjrD0/kvARe7Y8Mrrf/+u9BVG0a+La/x cH+jGCFdHEUUmGkBLXqJnnIgQ6s6UUPUwFt1OlXQ5xDRRVBaMikZYb8g4qIgT961Yq aRWvXiarXxNcIb6V5ltQlMEMLt/vUTDfwTsqCLphFrWBouu+dJQSdsph1/N30ZLJ+6 ZzOwWPTdVVI2sUyluEm8Gmpqsql8oEVBD2lu3ZTDIrLQaL5CdVxaBoGB7QZDb/fJoI RSoEakRp8wKjA== Date: Wed, 27 Dec 2023 12:00:38 +0530 From: Manivannan Sadhasivam To: Chanwoo Lee Cc: alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, jejb@linux.ibm.com, martin.petersen@oracle.com, peter.wang@mediatek.com, chu.stanley@gmail.com, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, stanley.chu@mediatek.com, quic_cang@quicinc.com, quic_asutoshd@quicinc.com, powen.kao@mediatek.com, quic_nguyenb@quicinc.com, yang.lee@linux.alibaba.com, beanhuo@micron.com, Arthur.Simchaev@wdc.com, ebiggers@google.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, grant.jung@samsung.com, jt77.jang@samsung.com, dh0421.hwang@samsung.com, sh043.lee@samsung.com Subject: Re: [PATCH v2] ufs: mcq: Adding a function for MCQ enable Message-ID: <20231227063038.GJ2814@thinkpad> References: <20231221065608.9899-1-cw9316.lee@samsung.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20231221065608.9899-1-cw9316.lee@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( 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